Blockchain developer for NFT project

Job ID: 31489652

Budget: $250 – $750 USD

I am gonna build lootbox project.
I'm looking to do lootboxes where user buys a box, there will be fixed number of boxes per round available. Once time expires user who purchased a box can open it. Then they have a chance to win one of 3 cards per round or nothing. Each card has a percentage of dropping.
Please bid if you have experience in NFT smart contract.
Related categories: Blockchain Solidity Smart Contracts